Knowledge modeling in traditional Chinese medicine with fuzzy influence diagrams
2008
Traditional Chinese medicine (TCM) has been developed for more than four thousand years. It is a complete medical system embracing diagnosis, treatment and prevention. However, the knowledge of TCM is linguistically vague and usually involves subjective judgments, which makes automated inference challenging. This study proposes a novel approach for knowledge modeling in TCM, fuzzy influence diagrams (FID). Considering the subjective knowledge as well as linguistic fuzziness in TCM, possibility distributions are used to model the uncertainty and causal relationships in influence diagrams, which extend the conventional influence diagrams into fuzzy influence diagrams. The FID provides a general platform for answering various queries in TCM, such as prognosis, diagnosis, and optimal treatment. The FID can bridge the qualitative fuzziness and quantitative numerical models in knowledge bases for TCM.
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